DE3346528C2 - - Google Patents
Info
- Publication number
- DE3346528C2 DE3346528C2 DE3346528A DE3346528A DE3346528C2 DE 3346528 C2 DE3346528 C2 DE 3346528C2 DE 3346528 A DE3346528 A DE 3346528A DE 3346528 A DE3346528 A DE 3346528A DE 3346528 C2 DE3346528 C2 DE 3346528C2
- Authority
- DE
- Germany
- Prior art keywords
- wood chips
- intermediate stage
- impregnation
- temperature
- wood
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002023 wood Substances 0.000 claims description 42
- 238000005470 impregnation Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 16
- 238000005406 washing Methods 0.000 claims description 14
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 12
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 9
- 229920001131 Pulp (paper) Polymers 0.000 claims description 7
- 238000010025 steaming Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 235000010265 sodium sulphite Nutrition 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 description 16
- 239000000835 fiber Substances 0.000 description 8
- 206010041662 Splinter Diseases 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000035515 penetration Effects 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000011111 cardboard Substances 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- PQUCIEFHOVEZAU-UHFFFAOYSA-N Diammonium sulfite Chemical compound [NH4+].[NH4+].[O-]S([O-])=O PQUCIEFHOVEZAU-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 241000218657 Picea Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000012978 lignocellulosic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 238000006277 sulfonation reaction Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C1/00—Pretreatment of the finely-divided materials before digesting
Landscapes
- Paper (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8300124A SE8300124D0 (sv) | 1983-01-12 | 1983-01-12 | Behandling av vedflis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3346528A1 DE3346528A1 (de) | 1984-07-12 |
| DE3346528C2 true DE3346528C2 (en)) | 1993-03-18 |
Family
ID=20349544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19833346528 Granted DE3346528A1 (de) | 1983-01-12 | 1983-12-22 | Verfahren zum behandeln von holzspaenen |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS59137583A (en)) |
| AU (1) | AU567139B2 (en)) |
| CA (1) | CA1216709A (en)) |
| DE (1) | DE3346528A1 (en)) |
| FI (1) | FI76843C (en)) |
| FR (1) | FR2539155B1 (en)) |
| NO (1) | NO157828C (en)) |
| SE (1) | SE8300124D0 (en)) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE451605B (sv) * | 1983-06-27 | 1987-10-19 | Mo Och Domsjoe Ab | Forfarande och anordning for forbehandling av lignocellulosamaterial |
| US9091073B2 (en) * | 2012-12-10 | 2015-07-28 | Brad Wells | Method and apparatus for temporary surface protection |
| US10933555B2 (en) * | 2014-06-25 | 2021-03-02 | Technologies Boralife Inc. | Process and apparatus for treating lignocellulosic material |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3393122A (en) * | 1964-06-03 | 1968-07-16 | Georgia Pacific Corp | Pretreatment of green wood with reducing agent prior to storage |
| CA1094263A (en) * | 1975-09-18 | 1981-01-27 | Douglas Atack | Method of producing ultra high yield pulp |
| US4211605A (en) * | 1978-08-03 | 1980-07-08 | Canadian International Paper Company | High yield chemimechanical pulping processes |
-
1983
- 1983-01-12 SE SE8300124A patent/SE8300124D0/xx unknown
- 1983-12-22 DE DE19833346528 patent/DE3346528A1/de active Granted
- 1983-12-22 NO NO834751A patent/NO157828C/no unknown
- 1983-12-23 AU AU22833/83A patent/AU567139B2/en not_active Ceased
- 1983-12-30 FI FI834877A patent/FI76843C/fi not_active IP Right Cessation
-
1984
- 1984-01-11 FR FR8400358A patent/FR2539155B1/fr not_active Expired
- 1984-01-11 JP JP59003342A patent/JPS59137583A/ja active Pending
- 1984-01-11 CA CA000445104A patent/CA1216709A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NO834751L (no) | 1984-07-13 |
| DE3346528A1 (de) | 1984-07-12 |
| FI76843B (fi) | 1988-08-31 |
| FI834877A0 (fi) | 1983-12-30 |
| FI834877L (fi) | 1984-07-13 |
| FR2539155A1 (fr) | 1984-07-13 |
| CA1216709A (en) | 1987-01-20 |
| FR2539155B1 (fr) | 1986-05-23 |
| AU2283383A (en) | 1984-07-19 |
| SE8300124D0 (sv) | 1983-01-12 |
| JPS59137583A (ja) | 1984-08-07 |
| NO157828C (no) | 1992-06-04 |
| NO157828B (no) | 1988-02-15 |
| AU567139B2 (en) | 1987-11-12 |
| FI76843C (fi) | 1988-12-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |